Higher order aberration comparison between two aspherical intraocular lenses: MC6125AS and Akreos advanced optics

AIM: To compare higher order aberrations in two aspherical intraocular lenses(IOLs): Akreos advanced optics(AO) and Dr. Schmidt Microcrystalline 6125 aspheric anterior surface(MC6125AS) with each other. METHODS: Forty eyes of 39 patients underwent phacoemulsification and Akreos AO and MC6125 AS were implanted in their eyes in a random manner. Three months post-operatively, higher order aberrations including spherical aberration, coma aberration, and total aberrations were measured and compared.RESULTS: The total aberration was 0.24±0.17 in eyes with Dr. Schmidt and 0.20 ±0.01 in eyes with Akreos AO(P =0.361). The mean of coma aberration was 0.17 ±0.21 and 0.09 ±0.86 in Dr. Schmidt and Akreos lenses,respectively(P =0.825). Total spherical aberration was almost the same in both groups(mean: 0.05, P =0.933).Best corrected visual acuity in Akreos AO(0.10±0.68) and Dr. Schmidt(0.09±0.67) did not differ significantly(P =0.700). CONCLUSION: There is no statistically significant difference in the higher order aberrations between these two aspherical lenses.

OPD-Scan Ⅱ检测正常眼和圆锥角膜眼的角膜像差（英文）

目的:评估正常眼和圆锥角膜眼的角膜高阶像差(HOAs)。方法:使用OPD-Scan Ⅱ波前像差分析仪,评估80例80眼圆锥角膜(KC)患者和91例正常眼角膜表面参数。对两组受试者的Zernike系数第三阶到第六阶,原始彗差均方根(RMS),彗差和总高阶像差进行比较分析。结果:圆锥角膜眼和正常眼间测得的像差具有显著差异(P<0.001),相较于正常眼,圆锥角膜患者像差参数显著较高(P<0.001)。结论:通过OPD-Scan Ⅱ测量角膜波前像差在圆锥角膜眼中显著高于正常眼。